If you want some cheap stock Toyota seats, nothing can beat the 1st gen MR2 seats from 1985-1989. They are a direct 100% bolt in! I drive a MR2 daily and the seats are so comfortable its one less thing I had to upgrade to. I didnt need any fancy aftermarket seats since my stock buckets were just as good!
Once I get my '81 going, I wont even think twice about finding some MR2 seats. The early styles (1985-1986) had a two tone color scheme while the latter designs (1987-1989) were all one color. Same seats, just the multicolor looked cool